<template>
  <div class="login_container">
    <div class="login_box">
      <div class="title">
        <span>学生成绩管理系统</span>
      </div>
      <!-- 登录表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input @keyup.enter.native="login" placeholder="请输入账号" v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input @keyup.enter.native="login" placeholder="请输入密码" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" :type="ispassword"></el-input>
          <i :class="view" @click="showpass"></i>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
      <div class="loginFormBottom">
        <a @click="aclick" style="color:#409eff">没有账号？去注册-></a>
        <a style="color:#f33d3d">找回密码</a>
      </div>
    </div>
  </div>
</template>

<script>
import router from "../router"
export default {
  data() {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: '',//admin
        password: ''//123456
      },
      // 这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      },
      ispassword:"password",
      view:"el-icon-view view",
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    resetLoginForm() {
      // console.log(this);
      this.$refs.loginFormRef.resetFields()
    },
    aclick() {
      console.log(1)
      router.push({path:'/regiest'})
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功')
        // 1. 将登录成功之后的 token，保存到客户端的 sessionStorage 中
        //   1.1 项目中出了登录之外的其他API接口，必须在登录之后才能访问
        //   1.2 token 只应在当前网站打开期间生效，所以将 token 保存在 sessionStorage 中
        window.sessionStorage.setItem('token', res.data.token)
        // 2. 通过编程式导航跳转到后台主页，路由地址是 /home
        this.$router.push('/home')
      })
    },
    showpass() {
      if(this.ispassword == "password"){
        this.ispassword = "text"
        this.view = "el-icon-view view1"
      } else {
        this.ispassword = "password"
        this.view = "el-icon-view view"
      }
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background: linear-gradient(45deg, rgb(103, 199, 243), rgb(250, 250, 250));
  background-size: 1980px 969px;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 550px;
  background-color: #f7f7f7;
  border-radius: 10px;
  box-shadow: 0 0 100px rgb(102, 197, 235);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ccc;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  bottom: 160px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: center;
}
.loginFormBottom{
  display: flex;
  justify-content: space-between;
  margin-top: 353px;
  padding: 0 20px;
}
.loginFormBottom a{
  cursor: pointer;
}
.title{
  width: 450px;
  text-align: center;
  font-size: 30px;
  padding: 60px 0;
  font-weight: 700;
    color:#b4eefa;
    text-shadow:
    0px 1px 0px #c0c0c0,
    0px 2px 0px #b0b0b0,
    0px 3px 0px #a0a0a0,
    0px 4px 0px #909090,
    0px 5px 10px rgba(0, 0, 0, 0.6);
}
.view{
  position:absolute;
  right:10px;
  top:50%;
  transform:translateY(-50%);
  font-size: 18px;
  color: #c0c4cc;
}
.view1{
  position:absolute;
  right:10px;
  top:50%;
  transform:translateY(-50%);
  font-size: 18px;
  color: black;
}
.view,.view1:hover{
  cursor: pointer;
}
</style>
